<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<% request.getSession().invalidate(); %>
error
<a href="http://localhost:8080/login.jsp">登陆</a>
</body>
</html>